import { RuntypeBase } from './runtype';
declare type PropKey = string | symbol;
/**
 * A parameter decorator. Explicitly mark the parameter as checked on every method call in combination with `@checked` method decorator. The number of `@check` params must be the same as the number of provided runtypes into `@checked`.\
 * Usage:
 * ```ts
 * @checked(Runtype1, Runtype3)
 * method(@check p1: Static1, p2: number, @check p3: Static3) { ... }
 * ```
 */
export declare function check(target: any, propertyKey: PropKey, parameterIndex: number): void;
/**
 * A method decorator. Takes runtypes as arguments which correspond to the ones of the actual method.
 *
 * Usually, the number of provided runtypes must be _**the same as**_ or _**less than**_ the actual parameters.
 *
 * If you explicitly mark which parameter shall be checked using `@check` parameter decorator, the number of `@check` parameters must be _**the same as**_ the runtypes provided into `@checked`.
 *
 * Usage:
 * ```ts
 * @checked(Runtype1, Runtype2)
 * method1(param1: Static1, param2: Static2, param3: any) {
 *   ...
 * }
 *
 * @checked(Runtype1, Runtype3)
 * method2(@check param1: Static1, param2: any, @check param3: Static3) {
 *   ...
 * }
 * ```
 */
export declare function checked(...runtypes: RuntypeBase[]): (target: any, propertyKey: PropKey, descriptor: PropertyDescriptor) => void;
export {};